Atlas Obscura put together a fantastic collection of buildings balanced on cliffsides. If you're afraid of heights, this is probably not a list you'd look at to plan your next vacation. If you enjoy hanging out on the edge of a treacherous-looking cliffside, this list will be right up your alley.
The list includes Spain's Mohon del Trigo Observatory, an abandoned, mysterious-looking stone observatory sitting alone in the Sierra Nevada mountains. Then there's Arizona's Montezuma Castle National Monument, a 1,000-year-old cliff dwelling built directly into a limestone wall. There's also Iceland's Thridrangaviti Lighthouse, a tiny structure perched atop a jagged sea stack in the middle of the Atlantic Ocean that looks less like a lighthouse and more like a secret hideout.
What ties these places together is the overwhelming feeling that humans absolutely should not have built anything there, and yet they did anyway. That some of these structures have stood for nearly 1,000 years, though, proves that cliffs can be a perfectly safe place to sit at a restaurant, visit an old lighthouse, or even spend the night.
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